Lower vent of a multi-chamber blowoff valve



FIG. 1 is a perspective view of a lower vent of a multi-chamber blowoff valve showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a back elevational view thereof; and,

FIG. 5 is a bottom plan view thereof.

The features shown in broken lines depict environmental structure only and form no part of the claimed design. 

CLAIM The ornamental design for a lower vent of a multi-chamber blowoff valve, as shown and described. 